Sec. 680.011. DEFINITIONS. In this subchapter: (1) "Motorcycle" has the meaning assigned by Section 502.001 and includes a motorcycle equipped with a sidecar. (2) "Preferential lane" means a traffic lane on a street or highway where motor vehicle usage is limited to: (A) buses; (B) vehicles occupied by a minimum number of persons; or (C) car pool vehicles. Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.